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BCO

There are two commercial brominated carbonate oligomer (BCO ) products. Both are prepared from tetrabromobisphenol-A and phosgene. One has phenoxy end caps [28906-13-0] and the other tribromophenoxy [71342-77-3] end caps. These are used primarily in PBT and polycarbonate acrylonitrilebutadienestyrene (PCABS) blends.